Moh's Hardness Scale
What is the hardest mineral?
Diamond
How would weighing a rock, help you figure out if it is gold or pyrite?
Gold weighs more than pyrite
If you found fossil of a dinosaur nest, what would you learn about the dinosaur?
Baby size, how many eggs it has
In the limestone test, if there was limestone the rock would ________________ when we put vinegar on it.
Bubble
These are made of only one substance. (rock or mineral?)
Mineral
What would scratch Topaz?
Corundum or Diamond
Would color help you figure out if a rock was gold or pyrite?
No they both have a gold color
If you found fossilized dinosaur teeth, what would you learn about the dinosaur?
What it ate or if it was a carnivore
What is the order of things to scratch with for the hardness test?
fingernail, penny, nail, file
These are made of more than one substance. (Rocks or minerals)
Rocks
What would gypsum scratch?
Talc
How would the hardness test help you figure out if it was gold or pyrite?
Gold is softer than pyrite
If you found fossilized dinosaur tracks, what would you learn about the dinosaur?
How it moved, did it walk on 2 or 4 legs
Buoyancy test - If you put pumice in water, it will ___________
Float
Why are diamonds used for drill tips?
They are the hardest mineral so they can cut through other rocks and minerals
What is harder than Feldspar but softer than Topaz?
Quartz
How would the streak test help you figure out if a rock was gold or pyrite?
Gold streaks gold, pyrite streaks black
What are two ways that fossils help us?
- learn about past animals
- learn about what dinosaurs looked like
- learn what dinosaurs ate
etc.
Limestone test, hardness test, buoyancy test.
What are the other two tests that we did?
Streak test and magnetism test
Why are diamonds used for rings?
- rare
- shiny
- hard to break
Which two minerals would obsidian be between if its hardness is 5.5?
Apatite and Feldspar
Would Luster help you figure out if a rock was gold or pyrite?
No they are both shiny
What is the difference between a mould and cast fossil?
Mould fossil is an imprint of what it looked like, cast fossil is the 3D shape of the object.
Why would you not use talc for a drill bit?
It is the softest mineral so it would break before it cut through anything
What are 5 uses of rocks and minerals?
gold - jewelry granite - countertops
diamonds - rings, drill bits
copper - wires marble - statues
obsidian - decorative knives and statues
any other answers that work